| 摘要 |
PROBLEM TO BE SOLVED: To provide a resonated sound absorbing body which is relatively large and can effectively absorb sound with an improved portable container.SOLUTION: A resonated sound absorbing body 10 uses a relatively large sized container for transportation as a resonated sound absorbing body. A Helmholtz resonator is composed of a plurality of openings 2 prepared on at least one side face 1 which forms a rectangular parallelepiped including a door, and penetration tubes 4 of predetermined length installed on the openings 2 inside of the container to communicate. |
